1. Necessity of 'two time zones: IST-I (UTC + 5 : 30 h) and IST-II (UTC + 6 : 30 h)' in India and its implementation.
- Author
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Sharma, Lakhi, De, S., Kandpal, P., Olaniya, M. P., Yadav, S., Bhardwaj, T., Thorat, P., Panja, S., Arora, P., Sharma, N., Agarwal, A., Senguttuvan, T. D., Ojha, V. N., and Aswal, D. K.
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UNITS of time , *CIRCADIAN rhythms , *LEGISLATORS , *INDUSTRIALISTS - Abstract
A strong demand of a separate time zone by northeast populace has been a matter of great debate for a very long period. However, no implementable solution to this genuine problem has yet been proposed. The CSIR-National Physical Laboratory, CSIR-NPL (the National Measurement Institute, NMI, of India and custodian of Indian Standard Time, IST) proposes an implementable solution that puts the country in two time zones: (i) IST-I (UTC + 5 : 30 h, represented by longitude passing through 82°33′E) covering the regions falling between longitude 68°7′E and 89°52′E and (ii) IST-II (UTC + 6 : 30 h, represented by longitude passing through 97°30′E) encompassing the regions between 89°52′E and 97°25′E. The proposed demarcation line between IST-I and IST-II, falling at longitude 89°52′E, is derived from analyses of synchronizing the circadian clocks to normal office hours (9 : 00 a.m. to 5 : 30 p.m.). This demarcation line passes through the border of West Bengal and Assam and has a narrow spatial extension, which makes it easier to implement from the railways point of view. Once approved, the implementation would require establishment of a laboratory for 'Primary Time Ensemble - II' generating IST-II in any of the north-eastern states, which would be equivalent to the existing 'Primary Time Ensemble-I' at CSIR-NPL, New Delhi. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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